Perhaps you should try some spelling variations:
spoken conversations » spoken conversation, open conversations, oboen conversations
upon conversations » union conversations, open conversations, human conversations
brief hystory » brief history, brief herstory, brief story
bief history » brief history, imf history, reef history
ref history » reef history, brief history, imf history
11 germany » 11 german, 1918 germany, 8 germany

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: %christian ((upon conversations) OR (spoken conversations)) %((11 germany) OR (7 germany)) %((ref history) OR (((bief history) OR (brief hystory)))) %2.2 ((20th century) OR (18th century))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%christian ((upon conversations) or (spoken conversations)) %((11 germany) or (7 germany)) %((ref history) or (((bief history) OR (brief hystory)))) %2.2 ((20th century) or (18th century))%22".
• Adding a wildcard symbol may retrieve word variants: %christian ((upon conversations) or (spoken conversations)) %((11 germany) or (7 germany)) %((ref history) or (((bief history) OR (brief hystory)))) %2.2 ((20th century) or (18th century))%22*.